William g



(N0 Model.)

W. G. DOUGLA OASE REGISTER AND 11m OB.

N0. 473,172. PatentedApr. 19, 1892.

UNITED STATES PATENT OFFICE.

XVILLIAM G. DOUGLAS, OF DAY TON, OHIO, ASSIGNOR TO THE NATIONAL OASI-I REGISTER COMPANY, OF SAME PLAGE.

CASH REGISTER AND INDICA.TOR.

SPEC'IFICATION forming part of Letters Patent N0. 473,172, dated April 19, 1892. Applioation fi1ed .Eebrnmy 8. 1892. Seria1No. 420689. (N0 1hodel.)

T0 all w7wm z't may conccrn:

Be it known that I, WILLIAM G. DOUGLAS, 2L citizen of the United States, residing at Daytou, in the county cf l\lontgomery and State of Ohio, have inventcd certain new aud usefu1 Improvements in Cash Registers und Indicators, of which the following is a descripti0n, referencc being had t0 the accompauying drawings, forming pa1t of this speoification.

My in vcntion relates to the indicating mechanism of such machines, and its nove1ty will be herein set forh, zu1d particularly pointed out in thc cla.ims.

In the accompauying drawings, Figure l is a front elevation of a group of indicacors und their supporting-rods, sections of the keys by which they 2ue operated being shown at their 1ower ends. Fig. 2 is a plan view of the keyboard or series of numbercd key-buttous of a cash-register.

In machines cf this dass each key has heretofore generally beeu made to operate but one indicator, such indioator bem*ing a nunuber corresponding to the value of the key und being moved into view by the operatiou of the key. In such case it was necessary to have a separate key aud separate iudicator for each amouut to be indicated und registered, 01 e1se two 01 more keys and (wo o1 mo1e indioators ha.d to be simultaneously operated to indicate those amounts which could not be indicated by the operatious of single keys. The objeotion to this latter course is that it1's uot only ofteu confusing to have two indicators exposed at once; but where they zue adjacent aud over1ap euch other (as adjacent indioators generally de in the ordinary cash-regis- Ler) nhe two nuznbers canno1; be clearly exposed.

My inveution consists in combiuing a third indicator with euch two keys, which are to be operated togethe1 to indicauc the sum of their values, such third indicator bearing; a number indicating the sum of such values, an(l being so eombined With the two keys that the operation of either key singly Will expose simply its 0w11 individual indicator, Whi1e the Oper ation of the two keys together Will expose the third indicator, exhibiting the sum of their values. Thus With the one-cent key and its iudioator zu1d the twoceut key and its iudi cator I combine a third indicstor to indicace three cents, such third indicator being so combin ed with the one-cent and two-cent keys that the opemtiou of both together will expose the three-cent indioaor and hide the one-oent und two-ceut indicators, while the operation of eit-her key alone Will expose only i'us iudividual indioator. With the two-cent aud four-cent indicators I combine a sirccent indicator,with the four-cent am]. five-cent indicacors a. niue-cent iudicator, with the five and ten-cent iudicators a fifteen-cent indicator, and so on, as hereinafter desoribed, the resu1t being tha with a. given number of keys in a machlne I am enabled to make With single indicators a1u1ost double the number of iudications (hat me possible With sing1e iudicators, where eaoh key actuzmtes on1y one indicator.

In Fig. l of the accompauying drawiugs I have shown one method 0f combining these third 01' auxiliary indicators with the keys and indicators whose combined va1ues they are to represent. As there illustrated the indicators A are supported upou vertical rods B, mounted in guides O C, as usua1 in this dass of xnachines. Nine indicators zmd their supporting-rods a-re shown. The rods of fivo of these, representing, respectivcly, oue, two, four, five, aud ten cents, 1est at thci1 lower ends upon bhe rear ends 05 the operating-kcys D, cross-sections of five of which am shown in Fig. 1. The frout ends 0f these keys may be assumed to bear buttons correspouding to the five buttons on Ehe 1ight in Fig. 2, and when any key is operated its corresponding indicator is hfted and exposed to view at the usua1 reading-opeuing in the oasing of bhc machine.

The rods 0f the other four indicators, Which represen, respectively, three, six, nine, aud fifteen ceuts, are arrangcd as follows: (hat cf the three-cent indicator between those of the one-ceut und two-oent indicators, tha of the six-ccnt indicator between those 0f the two- Cent aud four-cent iudica-tors, that of the niue-cent indicator between those cf thc feurcent a.nd five-ceui; indicators, and "chst of the fifreerl-cent indieat0r between those 0f the five-cen'o and ten-cent indieators. Tl1e rods 0f these anxiliary indicators stand slightly in front 0f the 10w 0f the rods of the individual indicators, and the anxiliary inclicators stand in front of the respeetive individual indicaoors whose combined valuesthey represent. The rods 0f these auxiliary indicat0rs 1nay be snpported in any suitable manner. In the drawings the 10wer ends a1e shown extending down between tl1e keys and restlng 0n Ehe same support as 13110 rear ends 01' the keys. Pivoted to the fro'nt side 0f ea0h 01: then1, near its lower end, is a pendent plate E,'capable of swinging from side to side and whose range 0f movement may be limited by a pin F, projeet ing from the 1'0d through a slot in the plate. The lower ends of the plates are preferably. beveled off 130 a poin, and they a1e wider a-t their widest portion than the spaee between Lhe two adjacent keys D. The result 01: .this arrangement is that when any single key is operated the adjacent plates E are swung aside and the rods earrying the plates arg: not moved, while the 10d resting upon the key is lifted and its individual indicator exposed 10 view. When two adjacent keys am operated at onee, however, they pick np the intermediate plate E and lift the 1 0d t-0 whi el1 it is pivoted and expose its indieator t0 view. The individnal indicators belonging to the operated keys are also lifted; but as they a1e behincl the auxiliary indicator they are hidden fr0m view, the auxiliary indicators preferably being made somewhat wider than the others for this purose.

p In Fig. 2 I have shown the keyboard 0f a cash-register containing twenty-one keys t0 illnstrate how my invention may be earr'ied. ont in such a machine. It may be there assumed that the adjacent keys are all combined wioh intermediate auxilliary indicators in the manner shown in Fig. 1, ea0h key also having its individ ua.l indicator. By such combination I am enabled 110 indicate upon Single indicators the following forty-one nu m- 1, 2,77 (C 3,77 4:777 5,77 6,77 9,77 10; the seventeen multiples of five from 15 t.0 95, inclnsive; and 81, 351.05, 351.20, 351.35, 51.50, 851.65, 351.80, ]95;7 i 82;) 33, 351:, H &5;7 i %6) 39 510, and 515. T0 inclicate these numloers unde1 the old arrangement without exposing two separate indicanors f0r pa1t of the1n woulcl have required forty-one keys in the machine, while uncler 1ny new arrange- 1nent only twenty-one a-re necessary.

While I have shown and deseribed the auxiliary indicators as being co1nbined With the keys and individnal indicators by means 0f the plates E, pivoned t0 the rods of the auxiliary indicators and eo-operating With the keys, yet I (10 not wish 10 be restricted 10 the employment of such plates, 1101 where they are used t0 the partioular arrangement of them shown. F01 instance, they might be piv0ted higher up 0n the r0ds and 100 ar- 1anged t0 eo-operate with luqs upon the forward sides ofthe individual indicator-rods, n1ncl1 as they now co-operate with the keys; bnt 1ny invenion is n0t restricted to reciproeating indicators supported upon vertieal rods, as shown, bat is applicable t0 other well-known fornns of indicators supported and operating in clifierent ways. It contemplates, broadly, the eombination 0f two keys or other actuating deviees 0f an indicating-rnachine, with an indicator represenoing the sun1 0f 1311011 values and moved int0 view by t-heir joino operation, but re1naining stationary when either key is operated alone; also, the combination, in any forma, 0f two independ ently-movable indicators bearing indieatingnumbers and their operatin,g*-keys 01' other actuating devices, with a third indicator bearing a nun1ber representing the sum of the numbers upon the O'h8l two and arranged t0 be bronght into view by their joint operation and to re1nain hidden when either one 0f them is operated alone.

Having tl1us fully deseribecl my invention, I elaim- 1. In an indicating-machine, the combination, With two operating-keys 01 actuating de vices, of an indicator representing the s111 n 0f thei1 values and arranged to be 1noved 'into view by their joint operation, bnt 130 remain stabionary upon the operation of either key alone.

2. In an indicating-maehine, 1ahe combination, with two independently-nflovable indieators bearing indicating-numbers and their operating-keys 01 actuating devices, 0f a third in(licator bearing a nnmbe1 representing the 105 sun1 0f the numbers upon the 0Lher two and arranged t0 100 exposecl t0 view by their joint operatlon, 101111 to rennain nnexposed when only 0110 of thern is operated.

3. In an indieating-machine, the, combina- 1 10 ti0n 0f two adjaeent keys D, representing different valnes, tl1e intermediate r0d B, narrying an indiealor A, representing the sum 0f their values, and a plate E, carried by and movable upon the 1 0d B and cooperating 1 15 with the keys D in the manner deseribed.

4. In an indicating-maehine, the combinaoion 0f two adjaeentkeys D, representing different values, two indicators A, representing the respective values 0f said keys and carried 120 by r0ds B, lifted by t-he keys, a third indicator representing the sum 0f the values of the two keys and carried by a 10d intermediate the two keys, and a plate E, pivoted to said tahi1d IOO rod and co-operating with the two keys, in

the 1nanner clescribed.

WILLIAM G. DOUGLAS. Witnesses:

THOMAS CORWIN, PEARL N. SIGLER. 

